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Nonlinear tracking of underactuated surface vessels

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1 Author(s)
J. -M. Godhavn ; Dept. of Eng. Cybern., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

A control law for tracking of underactuated surface vessels is presented. Optimal trajectories for surface vessels are given as combinations of arcs of circles and line segments. It is shown how optimal trajectories can be made smooth by a technique called splines, and how these trajectories can be stabilized by backstepping. The control law depends on the forward velocity of the surface vessel always being positive, which is not a major limitation for tracking purposes. It is also shown how this work can be part of a hierarchical hybrid system for control of surface vessels

Published in:

Decision and Control, 1996., Proceedings of the 35th IEEE Conference on  (Volume:1 )

Date of Conference:

11-13 Dec 1996